Energy stores

Question 1

Magnetic energy stores?

Answer 1

The energy stored when repelling poles have been pushed closer together or when attracting poles have been pulled further apar

Question 2

Internal energy stores

Answer 2

The total kinetic and potential energy of the particles in an object

Question 3

Chemical energy stores

Answer 3

Energy stored in the bonds of chemical compounds

Question 4

Kinetic energy stores

Answer 4

describe the energy an object has because it is moving.

Question 5

Electrostatic energy stores

Answer 5

The energy stored when repelling charges have been moved closer together or when attracting charges have been pulled further apart.

Question 6

Elastic potential energy store?

Answer 6

energy stored as a result of applying a force to deform an elastic object.

Question 7

Gravitational energy store

Answer 7

Gravitational potential energy is stored in the gravitational field that exists between the two objects being considered

Question 8

Nuclear energy store

Answer 8

Nuclear energy is energy stored in the nucleus of an atom

Question 9

What is energy?

Answer 9

The ability to do work ( movement power and light )

Question 10

What is energy measured in?

Answer 10

Joules

Question 11

What is the Law of Conservation Energy?

Answer 11

Energy cannot be created or destroyed.

Question 12

What is an energy pathway?

Answer 12

An energy pathway is the way energy is passed from one store to another

Question 13

What are the four energy pathways?

Answer 13

Heating- temperature difference
Electrical- electricity current against resistance
Radiation- waves such as light and sound
Mechanical- physically applying force

Question 14

What is electrical power?

Answer 14

Electric power is the rate at which work is done or energy is transferred in an electrical circuit

Question 15

What is the equation for electrical power?

Answer 15

Electrical power= current x potential difference

Question 16

What is power?

Answer 16

Power is the rate of energy

Question 17

What is potential difference measured in?

Answer 17

Potential difference is measured in volts using a voltmeter

Question 18

What is the equation for power?

Answer 18

Power= transfer energy/ time ( measured in watts )

Question 19

What is efficiency?

Answer 19

Efficiency is the ratio of useful energy/ output to total energy

Question 20

What is the equation for efficiency?

Answer 20

Useful energy out
___________________

Total energy in

Question 21

What form does useless energy take in?

Answer 21

Useless energy takes in the form of heat

Question 22

How does an ammeter work?

Answer 22

an ammeter measures the current in an electric circuit through a set of coils with very low resistance and inductive reactance.

Question 23

What are all 8 energy stores

Answer 23

Magnetic
Internal
Chemical
Kinetic
Electrostatic
Elastic potential
Gravitational potential
Nuclear

Question 24

Examples of change in energy stores

Answer 24

A moving object hitting an obstacle, an object accelerated, a vehicle slowing down, bringing water to boil

Question 25

-| |- What is this symbol?

Answer 25

Cell

Question 26

________ what is that symbol?

Answer 26

A wire

Question 27

O x ( imagine the x is in the O )

Answer 27

Lamp

Question 28

O A ( imagine the a is in the circle )

Answer 28

Ammeter

Question 29

O V ( imagine the v is in the circle )

Answer 29

Voltmeter

Question 30

—o/ o— Symbol?

Answer 30

Switch

Question 31

-[_____]- Symbol

Answer 31

Resistor

Question 32

What are parallel curcuits?

Answer 32

A parallel circuit has two or more paths for current to flow through.

Question 33

What are series circuits?

Answer 33

In a series circuit, all components are connected end-to-end, forming a single path for current flow

Question 34

Current unit and how to measure

Answer 34

Ammeter, amp